# Stop Greenwashing! With International Sustainability Certifications for Hotels | Carbonwize Blog > Carbonwize delivers Scope 1–3 carbon accounting aligned with TGO CFO and ISO 14064. Trusted by 500+ enterprises for audit-ready ESG and climate disclosure reporting. Source: https://carbonwize.io/en/blog/hotel-third-party-certification This content has been auto-translated from Thai.[View original (Thai)](/blog/hotel-third-party-certification) [Carbonwize Academy](/en/blog/tag/carbonwize-academy) # Stop Greenwashing! With International Sustainability Certifications for Hotels [![Pimboon Thanwiset](https://blog.carbonwize.io/content/images/size/w48/2025/01/PimboonThanwiset.png)Pimboon Thanwiset](/en/blog/author/pimboon)• February 17, 2025 • 1 min read ![หยุด Greenwashing! ด้วยการรับรองความยั่งยืนระดับสากลสำหรับโรงแรม](https://blog.carbonwize.io/content/images/size/w1200/2025/02/9.png) > _Why should hotels have international sustainability certifications accredited by third-party organizations (Third-Party Certification)?_ [**Sustainability**](/blog/why-sustainability-hotel) is not just a trend, but a necessity. As environmental awareness increases, so does the demand for sustainable practices across various industries. For hotels, embracing sustainability is not just about meeting customer demands, but about preparing the business for the future.  One of the most effective ways to do this is through **sustainability certification**, especially international certifications that have undergone **third-party certification.**  _This article will explain why international sustainability certifications are important and how they can help prevent greenwashing._ United Nations Sustainable Development Goals (SDGs) **1\. Build Trust Through Credibility** In the hospitality industry, trust is everything. International sustainability certifications such as Global Sustainable Tourism Council (GSTC), Green Growth 2050, Ecostars, or EarthCheck provide accreditation and **third-party verification (**[**Third-party Certification**](https://news.booking.com/bookingcom--prioritizing-third-party-certifications/?ref=blog.carbonwize.io)**), which guarantees that the hotel has received valid sustainability certification.** This is in contrast to self-assessed labels or vague sustainability statements. Therefore, international certification demonstrates responsibility and provides tangible evidence of the hotel's socially and environmentally friendly practices. Among these certifications, certification from the [**Global Sustainable Tourism Council (GSTC)**](https://www.gstcouncil.org/?ref=blog.carbonwize.io) is highly regarded as a benchmark for hotel sustainability certification. This is because GSTC not only sets internationally recognized criteria for sustainable tourism but also ensures compliance with international norms such as the United Nations Sustainable Development Goals (SDGs). GSTC's stringent standards cover environmental, social, and cultural dimensions, providing a more comprehensive framework than other certifications. Hotels certified by GSTC are seen as leaders in sustainability, which enhances their credibility and trust. **2\. Prevent** [**Greenwashing**](/blog/green-terminology) Greenwashing, or making unsubstantiated claims about environmental responsibility, has become a significant problem. Many businesses make unsupported claims about their sustainability efforts, which not only misleads consumers but also erodes trust in the industry as a whole. International sustainability certifications through independent organizations can help ensure that your hotel's efforts are thoroughly vetted against rigorous criteria. This external verification helps to **distinguish truly sustainable businesses from those merely jumping on the green bandwagon**. **3\. Meet Consumer Expectations** Today's travelers are more environmentally conscious, with many prioritizing sustainable options when booking accommodation. A Booking.com survey found that **76% of travelers want to stay in sustainable accommodation**. However, they often find it difficult to determine which claims are genuine. International sustainability certifications accredited by third-party organizations therefore serve as a credible mark.  Currently, Booking.com has added a search option for certified sustainable accommodations, where travelers can filter through the **“Sustainability certification”** heading, which will display a list of accommodations that have received international sustainability certification through third-party verification, making it easier for travelers to identify and choose your hotel over competitors. Hotels with sustainability certification on Booking.com **4\. Operational Efficiency and Cost Savings** Sustainability certifications often require the implementation of energy-efficient systems, waste reduction programs, and water-saving technologies. While these initiatives demonstrate your commitment to the environment, they also contribute to **improved operational efficiency and long-term cost savings**. For example, installing energy-efficient lighting systems or properly managing waste can significantly reduce utility costs, creating a win-win situation for both the planet and your bottom line. **5\. Align with Global Standards and Collaborations** Global collaborations such as the [United Nations Sustainable Development Goals (SDGs)](/blog/green-terminology) have established a framework for various industries to contribute to a better future. Sustainability certifications often align with these standards, helping your hotel play a role in **creating a global environmental and social impact**. GSTC certification, in particular, demonstrates intent and commitment aligned with global policies, as GSTC's programs integrate SDG principles into their assessment criteria, making it a superior choice for hotels seeking to make an international impact. **6\. Increase Employee Engagement and Retention** Employees often take pride in working for organizations that prioritize sustainability and ethics. Achieving sustainability certification demonstrates that your hotel is **committed to goals beyond profit, fostering a sense of pride and engagement among employees**. It also helps attract talent who value working for socially responsible companies. **7.** **Continuous Improvement** International sustainability certifications, such as GSTC, are not a one-time audit but require continuous assessment and improvement to ensure hotels maintain sustainable standards. This regular assessment helps hotels improve and develop their sustainability approaches. Plan your organization's sustainability policy **_If your hotel wants to obtain international sustainability certification, what should you do?_** Steps to obtain international sustainability certification through third-party certification: 1. **Study relevant certification standards:** There are various international hotel sustainability certification bodies, so choose a certification that aligns with your hotel's size, location, and sustainability goals. 2. **Conduct an internal sustainability self-assessment:** Evaluate your hotel's current practices to identify areas for improvement. 3. [**Establish a sustainability policy**](/blog/sustainable-hotel-trend-2025)**:** Create a hotel sustainability policy for all personnel to follow as a guideline, and set sustainability goals that the hotel aims to achieve. 4. **Implement necessary changes:** This may include installing energy-saving systems, improving waste management, or sourcing environmentally friendly local products. 5. **Apply for third-party audit:** Choose an independent organization that provides auditing services for the desired hotel sustainability certification standards. 6. **Prepare documents and premises:** Submit necessary documents for evaluation and prepare for on-site inspection. 7. **Obtain certification:** If no further adjustments are needed, once certified, hotels can communicate their achievement through their website, marketing materials, or OTAs to demonstrate their commitment to sustainability to travelers. Hotel sustainability certification Therefore, hotel sustainability certification is not just about receiving an award or certificate, but a confirmation of the hotel's commitment to environmental conservation, promoting the economy and culture of nearby communities, while continuously providing memorable experiences for travelers.  These sustainability certification standards provide guidance for hotels to operate efficiently, demonstrating responsibility and transparency, which can help prevent unsubstantiated claims of environmental responsibility or greenwashing. 🌍 **Is your hotel ready to move towards sustainability?** The [Carbonwize](https://www.carbonwize.io/th?ref=blog.carbonwize.io) platform helps your organization achieve sustainability goals efficiently by accurately calculating carbon footprints and managing greenhouse gas emissions. 📧 Contact our team for consultation: [Contact Us](https://www.carbonwize.io/th/contact-us?ref=blog.carbonwize.io) Sources: [Global Sustainable Tourism Council (GSTC)](https://www.gstcouncil.org/?ref=blog.carbonwize.io), [Booking.com](https://news.booking.com/cost-vs-conscience-bookingcom-delves-into-the-dilemma-dividing-sustainable-travel-in-2023/?ref=blog.carbonwize.io#:~:text=Over%20three%20quarters%20\(76%25\),the%20two%20are%20mutually%20exclusive.), [United Nations](https://sdgs.un.org/goals?ref=blog.carbonwize.io) [Carbonwize Academy](/en/blog/tag/carbonwize-academy)[Sustainability](/en/blog/tag/sustainability)[Sustainable Tourism](/en/blog/tag/sustainable-tourism) [ ![Pimboon Thanwiset](https://blog.carbonwize.io/content/images/size/w128/2025/01/PimboonThanwiset.png) ### Pimboon Thanwiset Sustainability Specialist | ผู้เชี่ยวชาญด้านความยั่งยืน จบหลักสูตรปริญญาโทการพัฒนาแหล่งท่องเที่ยวและการบริการอย่างยั่งยืน มีประสบการณ์การบริหารธุรกิจ การโรงแรมและการบริการทั้งในประเทศไทยและต่างประเทศ ](/en/blog/author/pimboon)